Possible for background image instead of solid color?

[mkono87]

Im not quite sure if this is possible and where to edit it. Im sure its just a css file?

[Jost Alemann]

You can do that by editing the config.toml file.
Search for the line specifying backgroundImage = "...". Just uncomment the line and modify the background image path to your liking.
For example you could set it to backgroundImage = "background.png" if your background image is inside the static folder.